package everyday.nowcoder;

/**
 * @Author: wenjingyuan
 * @Date: 2022/10/16/12:49
 * @Description: 删除有序链表中重复的元素-I
 * https://www.nowcoder.com/practice/c087914fae584da886a0091e877f2c79?tpId=295&sfm=html&channel=nowcoder
 */
public class NumNC25 {
    /**
     *
     * @param head ListNode类
     * @return ListNode类
     */
    public ListNode deleteDuplicates (ListNode head) {
        if(head==null){
            return null;
        }
        ListNode cur=head;
        while(cur!=null && cur.next!=null){
            if(cur.val==cur.next.val){
                cur.next=cur.next.next;
            }else{
                cur=cur.next;
            }
        }
        return head;
    }
}
